[PATCH] ARM: mach-mx5/mx53_ard: Add support for i.MX53 ARD board

[andre.silva@freescale.com (Andre Silva)]

Signed-off-by: Andre Silva <andre.silva@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
In order to boot via NFS the following patch is needed:
http://git.pengutronix.de/?p=imx/linux-2.6.git;a=commit;h=903131f2894295947f2fe49d850b538127b2f64b
this allows the i.MX53 IRQ to work with smsc911x driver.

 arch/arm/mach-mx5/Kconfig                   |    8 ++
 arch/arm/mach-mx5/Makefile                  |    1 +
 arch/arm/mach-mx5/board-mx53_ard.c          |  175 +++++++++++++++++++++++++++
 arch/arm/plat-mxc/include/mach/uncompress.h |    1 +
 4 files changed, 185 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-mx5/board-mx53_ard.c

diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index 3c98455..695cdf0 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -209,6 +209,14 @@ config MACH_MX53_LOCO
 	  Include support for MX53 LOCO platform. This includes specific
 	  configurations for the board and its peripherals.
 
+config MACH_MX53_ARD
+	bool "Support MX53 ARD platforms"
+	select SOC_IMX53
+	select IMX_HAVE_PLATFORM_IMX_UART
+	help
+	  Include support for MX53 ARD platform. This includes specific
+	  configurations for the board and its peripherals.
+
 endif # ARCH_MX53_SUPPORTED
 
 endif
diff --git a/arch/arm/mach-mx5/Makefile b/arch/arm/mach-mx5/Makefile
index 0b9338c..df67fef 100644
--- a/arch/arm/mach-mx5/Makefile
+++ b/arch/arm/mach-mx5/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_MACH_MX51_3DS) += board-mx51_3ds.o
 obj-$(CONFIG_MACH_MX53_EVK) += board-mx53_evk.o
 obj-$(CONFIG_MACH_MX53_SMD) += board-mx53_smd.o
 obj-$(CONFIG_MACH_MX53_LOCO) += board-mx53_loco.o
+obj-$(CONFIG_MACH_MX53_ARD) += board-mx53_ard.o
 obj-$(CONFIG_MACH_EUKREA_CPUIMX51) += board-cpuimx51.o
 obj-$(CONFIG_MACH_EUKREA_MBIMX51_BASEBOARD) += eukrea_mbimx51-baseboard.o
 obj-$(CONFIG_MACH_EUKREA_CPUIMX51SD) += board-cpuimx51sd.o
diff --git a/arch/arm/mach-mx5/board-mx53_ard.c b/arch/arm/mach-mx5/board-mx53_ard.c
new file mode 100644
index 0000000..1a57500
--- /dev/null
+++ b/arch/arm/mach-mx5/board-mx53_ard.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/smsc911x.h>
+
+#include <mach/common.h>
+#include <mach/hardware.h>
+#include <mach/iomux-mx53.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include "crm_regs.h"
+#include "devices-imx53.h"
+
+#define ARD_ETHERNET_INT_B	IMX_GPIO_NR(2, 31)
+
+static iomux_v3_cfg_t mx53_ard_pads[] = {
+	/* UART1 */
+	MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
+	MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
+	/* WEIM for CS1 */
+	MX53_PAD_EIM_EB3__GPIO2_31, /* ETHERNET_INT_B */
+	MX53_PAD_EIM_D16__EMI_WEIM_D_16,
+	MX53_PAD_EIM_D17__EMI_WEIM_D_17,
+	MX53_PAD_EIM_D18__EMI_WEIM_D_18,
+	MX53_PAD_EIM_D19__EMI_WEIM_D_19,
+	MX53_PAD_EIM_D20__EMI_WEIM_D_20,
+	MX53_PAD_EIM_D21__EMI_WEIM_D_21,
+	MX53_PAD_EIM_D22__EMI_WEIM_D_22,
+	MX53_PAD_EIM_D23__EMI_WEIM_D_23,
+	MX53_PAD_EIM_D24__EMI_WEIM_D_24,
+	MX53_PAD_EIM_D25__EMI_WEIM_D_25,
+	MX53_PAD_EIM_D26__EMI_WEIM_D_26,
+	MX53_PAD_EIM_D27__EMI_WEIM_D_27,
+	MX53_PAD_EIM_D28__EMI_WEIM_D_28,
+	MX53_PAD_EIM_D29__EMI_WEIM_D_29,
+	MX53_PAD_EIM_D30__EMI_WEIM_D_30,
+	MX53_PAD_EIM_D31__EMI_WEIM_D_31,
+	MX53_PAD_EIM_DA0__EMI_NAND_WEIM_DA_0,
+	MX53_PAD_EIM_DA1__EMI_NAND_WEIM_DA_1,
+	MX53_PAD_EIM_DA2__EMI_NAND_WEIM_DA_2,
+	MX53_PAD_EIM_DA3__EMI_NAND_WEIM_DA_3,
+	MX53_PAD_EIM_DA4__EMI_NAND_WEIM_DA_4,
+	MX53_PAD_EIM_DA5__EMI_NAND_WEIM_DA_5,
+	MX53_PAD_EIM_DA6__EMI_NAND_WEIM_DA_6,
+	MX53_PAD_EIM_OE__EMI_WEIM_OE,
+	MX53_PAD_EIM_RW__EMI_WEIM_RW,
+	MX53_PAD_EIM_CS1__EMI_WEIM_CS_1,
+};
+
+static struct resource ard_smsc911x_resources[] = {
+	{
+		.start = MX53_CS1_64MB_BASE_ADDR,
+		.end = MX53_CS1_64MB_BASE_ADDR + SZ_32M - 1,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start =  gpio_to_irq(ARD_ETHERNET_INT_B),
+		.end =  gpio_to_irq(ARD_ETHERNET_INT_B),
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+struct smsc911x_platform_config ard_smsc911x_config = {
+	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+	.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
+	.flags = SMSC911X_USE_32BIT,
+};
+
+static struct platform_device ard_smsc_lan9220_device = {
+	.name = "smsc911x",
+	.id = -1,
+	.num_resources = ARRAY_SIZE(ard_smsc911x_resources),
+	.resource = ard_smsc911x_resources,
+	.dev = {
+		.platform_data = &ard_smsc911x_config,
+	},
+};
+
+static void __init mx53_ard_io_init(void)
+{
+	mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads,
+				ARRAY_SIZE(mx53_ard_pads));
+
+	gpio_request(ARD_ETHERNET_INT_B, "eth-int-b");
+	gpio_direction_input(ARD_ETHERNET_INT_B);
+}
+
+ /* Config CS1 settings for ethernet controller */
+static int weim_cs_config(void)
+{
+	u32 reg;
+	void __iomem *weim_base, *iomuxc_base;
+
+	weim_base = ioremap(MX53_WEIM_BASE_ADDR, SZ_4K);
+	if (!weim_base)
+		return -ENOMEM;
+
+	iomuxc_base = ioremap(MX53_IOMUXC_BASE_ADDR, SZ_4K);
+	if (!iomuxc_base)
+		return -ENOMEM;
+
+	/* CS1 timings for LAN9220 */
+	writel(0x20001, (weim_base + 0x18));
+	writel(0x0, (weim_base + 0x1C));
+	writel(0x16000202, (weim_base + 0x20));
+	writel(0x00000002, (weim_base + 0x24));
+	writel(0x16002082, (weim_base + 0x28));
+	writel(0x00000000, (weim_base + 0x2C));
+	writel(0x00000000, (weim_base + 0x90));
+
+	/* specify 64 MB on CS1 and CS0 on GPR1 */
+	reg = readl(iomuxc_base + 0x4);
+	reg &= ~0x3F;
+	reg |= 0x1B;
+	writel(reg, (iomuxc_base + 0x4));
+
+	iounmap(iomuxc_base);
+	iounmap(weim_base);
+
+	return 0;
+}
+
+static struct platform_device *devices[] __initdata = {
+	&ard_smsc_lan9220_device,
+};
+
+static void __init mx53_ard_board_init(void)
+{
+	imx53_add_imx_uart(0, NULL);
+
+	mx53_ard_io_init();
+	weim_cs_config();
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+static void __init mx53_ard_timer_init(void)
+{
+	mx53_clocks_init(32768, 24000000, 22579200, 0);
+}
+
+static struct sys_timer mx53_ard_timer = {
+	.init	= mx53_ard_timer_init,
+};
+
+MACHINE_START(MX53_ARD, "Freescale MX53 ARD Board")
+	.map_io = mx53_map_io,
+	.init_early = imx53_init_early,
+	.init_irq = mx53_init_irq,
+	.timer = &mx53_ard_timer,
+	.init_machine = mx53_ard_board_init,
+MACHINE_END
diff --git a/arch/arm/plat-mxc/include/mach/uncompress.h b/arch/arm/plat-mxc/include/mach/uncompress.h
index d85e2d1..88fd404 100644
--- a/arch/arm/plat-mxc/include/mach/uncompress.h
+++ b/arch/arm/plat-mxc/include/mach/uncompress.h
@@ -117,6 +117,7 @@ static __inline__ void __arch_decomp_setup(unsigned long arch_id)
 	case MACH_TYPE_MX53_EVK:
 	case MACH_TYPE_MX53_LOCO:
 	case MACH_TYPE_MX53_SMD:
+	case MACH_TYPE_MX53_ARD:
 		uart_base = MX53_UART1_BASE_ADDR;
 		break;
 	default:
-- 
1.7.1